CN211028487U - Multi-head welding gun for tubular product girth welding - Google Patents
Multi-head welding gun for tubular product girth welding Download PDFInfo
- Publication number
- CN211028487U CN211028487U CN201922125856.2U CN201922125856U CN211028487U CN 211028487 U CN211028487 U CN 211028487U CN 201922125856 U CN201922125856 U CN 201922125856U CN 211028487 U CN211028487 U CN 211028487U
- Authority
- CN
- China
- Prior art keywords
- welding
- air
- air duct
- air guide
- guide channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Arc Welding In General (AREA)
Abstract
The utility model discloses a bull welder for tubular product girth welding, including welder main casing, handle, switch, air duct and bonding tool, it has first air guide channel to be used for leading-in liquefied gas to open in the welder main casing, welder main casing connects the air duct, the air duct is opened has the second air guide channel that extends along air duct length direction, the second air guide channel connects first air guide channel, and this air duct afterbody bends downwards and the outer screw thread that takes shape on the lateral wall of air duct afterbody; the utility model realizes that the welding head can be detachably arranged on the air duct by arranging the external thread on the air duct and arranging the external thread on the welding head, thereby correspondingly replacing the welding head according to the actual welding requirement and having strong adaptability; meanwhile, the welding head is provided with the two air injection parts to spray liquefied gas for welding, and the arc-shaped structures of the two air injection parts are matched, so that the pipe can be welded from two positions simultaneously and can be quickly and stably welded only by swinging the welding gun.
Description
Technical Field
The utility model belongs to the technical field of the mechanical skill and specifically relates to a bull welder for tubular product girth welding is related to.
Background
Welding, also known as fusion, welding, is a manufacturing process and technique for joining metals or other thermoplastic materials, such as plastics, in a heated, high temperature or high pressure manner. The existing welding gun only has one air jet, so that the welding can be completed only by swinging the hand and the welding gun greatly when welding, the welding position is easy to deviate, and the pipe can deviate, so that the welding quality and the welding efficiency are influenced.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, an object of the utility model is to provide a bull welder for tubular product girth welding that welding efficiency is high, welding quality is high.
In order to achieve the above purpose, the utility model provides a scheme does: a multi-head welding gun for girth welding of pipes comprises a main shell, a handle, a switch, an air duct and a welding head, a first gas guide channel is arranged in the welding gun main shell for leading in liquefied gas, the welding gun main shell is connected with the gas guide tube, the air duct is provided with a second air duct extending along the length direction of the air duct, the second air duct is connected with the first air duct, the tail part of the air duct is bent downwards, an external thread is formed on the outer side wall of the tail part of the air duct, the welding head is provided with a third air duct, the head part of the welding head is provided with internal threads for being in threaded connection with the external threads at the tail part of the air duct so that the welding head can be detachably arranged on the air duct, the welding head tail part is formed with two air injection parts, the two air injection parts are respectively bent outwards and are of arc structures, and simultaneously the radian formed by the air injection ports of the two air injection parts is larger than 180 degrees; the handle is hinged to the welding gun main shell, the switch is arranged on the first air guide channel and used for opening and closing the first air guide channel, and the switch is connected with the handle.
The utility model has the advantages that: the welding head can be detachably installed and replaced, and the pipe can be welded more conveniently, in the utility model, the welding head can be detachably installed on the air duct by arranging the external thread on the air duct and the external thread on the welding head, so that the welding head can be correspondingly replaced according to the actual welding requirement, and the adaptability is strong; meanwhile, the welding head is provided with the two air injection parts to spray liquefied gas for welding, and the arc-shaped structures of the two air injection parts are matched, so that pipes can be welded quickly and stably from two positions simultaneously only by swinging the welding gun, hands and the welding gun do not need to be swung greatly during welding, and the welding quality and the welding efficiency of the pipes are high.
Furthermore, the welding head further comprises a sealing rubber ring, the sealing rubber ring is sleeved in the third air guide channel, and the sealing rubber ring is located above the internal thread. The utility model adopts the above structure after, through setting up sealed rubber ring, guarantee the leakproofness of the junction between bonding tool and the air duct, prevent that the phenomenon is revealed to the liquefied gas.
Further, the sealing rubber ring is made of a high-temperature-resistant and corrosion-resistant rubber material. The utility model adopts the above structure after, make sealed rubber ring through high temperature resistant corrosion resistant rubber materials, can prevent that sealed rubber ring from leading to the gas leakage phenomenon to appear in the junction between bonding tool and the air duct because of high temperature melts in welding process.
Further, the switch comprises a piston, a pull rod and a reset spring, the piston is arranged in the first air guide channel, a through hole is formed in the piston and used for communicating the first air guide channel, the piston is connected with the pull rod, the other end of the pull rod is connected with the handle, and the reset spring is arranged on the welding gun main shell body and the other end of the reset spring is connected with the handle. The utility model adopts the above structure after, open or close first air guide passageway through handle pulling switch.
Drawings
Fig. 1 is an overall structure diagram of the present invention.
Fig. 2 is a welding head welding diagram of the present invention.
Fig. 3 is a partial cross-sectional view of the present invention.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Fig. 5 is a cross-sectional view of the welding head of the present invention.
The welding gun comprises a welding gun main shell.
Detailed Description
The invention will be further described with reference to the following specific embodiments:
referring to the attached drawings 1 to 5, a multi-head welding gun for girth welding of pipes comprises a welding gun main shell 1, a handle 12, a switch 2, an air guide tube 3 and a welding head 4, wherein a first air guide channel 11 is formed in the welding gun main shell 1 and used for guiding liquefied gas, the welding gun main shell 1 is connected with the air guide tube 3, the air guide tube 3 is provided with a second air guide channel 31 extending along the length direction of the air guide tube 3, the second air guide channel 31 is connected with the first air guide channel 11, the tail part of the air guide tube 3 is bent downwards, an external thread 32 is formed on the outer side wall of the tail part of the air guide tube 3, the welding head 4 is provided with a third air guide channel 41, an internal thread 42 is formed at the head part of the welding head 4 and used for being in threaded connection with the external thread 32 at the tail part of the air guide tube 3, the welding head, simultaneously, the radian formed by the air injection ports of the two air injection parts 43 is larger than 180 degrees; the handle 12 is hinged on the welding gun main shell 1, the switch 2 is arranged on the first air guide channel 11 and used for opening and closing the switch 2, and the switch 2 is connected with the handle 12.
The bonding tool 4 further comprises a sealing rubber ring 44, the sealing rubber ring 44 is sleeved in the third air guide channel 41, and the sealing rubber ring 44 is positioned above the internal thread 42. The packing rubber 44 is made of a high temperature resistant and corrosion resistant rubber material.
In this embodiment, the switch 2 includes a piston 21, a pull rod 22 and a return spring 23, the piston 21 is disposed in the first air guide channel 11, the piston 21 is provided with a through hole 211 for conducting the first air guide channel 11, the piston 21 is connected to the pull rod 22, the other end of the pull rod 22 is connected to the handle 12, the return spring 23 is disposed on the welding gun main housing 1, and the other end of the return spring is connected to the handle 12.
The specific welding process of this embodiment is: introducing liquefied gas, wherein the liquefied gas is introduced from a first gas guide channel 11 of the welding gun main shell 1, at the moment, the handle 12 is pressed down to contract the return spring 23, the handle 12 pushes the pull rod 22 to push the piston 21 to advance, so that the through hole 211 of the piston 21 moves into the first gas guide channel 11, the first gas guide channel 11 is communicated with the liquefied gas, then the liquefied gas enters a second gas guide channel 21 of the gas guide tube 3 from the first gas guide channel 11 and enters a third gas guide channel 42 of the welding head 4 through the second gas guide channel 21, and finally the liquefied gas is shunted in the third gas guide channel 42 and is respectively sprayed out through the gas nozzles of the two gas spraying parts 43; at this moment, the two air nozzles of the two air injection parts 43 are ignited through the igniter to enable the two air nozzles to spray high-temperature flame, then the two air nozzles are close to the pipe 5 to be welded, the hand and the welding gun can be swung in a small amplitude to complete welding, so that the welding can be completed without swinging the hand and the welding gun greatly due to the adoption of a conventional welding gun, the welding quality is not high, and the welding position of the pipe 5 is deviated due to swinging.
The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make further changes and modifications to the invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.
Claims (4)
1. A bull welder for tubular product girth welding which characterized in that: including welder main casing body (1), handle (12), switch (2), air duct (3) and bonding tool (4), it has first air guide passageway (11) to be used for leading-in liquefied gas to open in welder main casing body (1), welder main casing body (1) is connected air duct (3), air duct (3) are opened and are had second air guide passageway (31) that extend along air duct (3) length direction, second air guide passageway (31) are connected first air guide passageway (11), this air duct (3) afterbody bend downwards just it has external screw thread (32) to form on the lateral wall of air duct (3) afterbody, bonding tool (4) are opened and are had third air guide passageway (41), the head of this bonding tool (4) be formed with internal thread (42) be used for with external screw thread (32) looks threaded connection of air duct (3) afterbody makes bonding tool (4) can dismantle the air duct and install on bonding tool (3), two air injection parts (43) are formed at the tail part of the welding head (4), the two air injection parts (43) are respectively bent outwards and are of arc structures, and simultaneously the radian formed by the air injection ports of the two air injection parts (43) is larger than 180 degrees; the handle (12) is hinged to the welding gun main shell (1), the switch (2) is arranged on the first air guide channel (11) and used for turning on the switch (2) to close the first air guide channel (11), and the switch (2) is connected with the handle (12).
2. The multi-head welding gun for girth welding of pipes according to claim 1, wherein: the welding head (4) further comprises a sealing rubber ring (44), the sealing rubber ring (44) is sleeved in the third air guide channel (41), and the sealing rubber ring (44) is located above the internal thread (42).
3. The multi-head welding gun for girth welding of pipes according to claim 2, wherein: the sealing rubber ring (44) is made of a high-temperature-resistant and corrosion-resistant rubber material.
4. The multi-head welding gun for girth welding of pipes according to claim 1, wherein: switch (2) include piston (21), pull rod (22) and reset spring (23), piston (21) set up in first air guide passageway (11), it has a through-hole (211) to be used for leading through first air guide passageway (11) to open on this piston (21), piston (21) are connected pull rod (22), pull rod (22) other end is connected handle (12), reset spring (23) set up in on the welder main casing body (1) and the other end is connected handle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922125856.2U CN211028487U (en) | 2019-12-02 | 2019-12-02 | Multi-head welding gun for tubular product girth welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922125856.2U CN211028487U (en) | 2019-12-02 | 2019-12-02 | Multi-head welding gun for tubular product girth welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211028487U true CN211028487U (en) | 2020-07-17 |
Family
ID=71569530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922125856.2U Active CN211028487U (en) | 2019-12-02 | 2019-12-02 | Multi-head welding gun for tubular product girth welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211028487U (en) |
-
2019
- 2019-12-02 CN CN201922125856.2U patent/CN211028487U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1049482C (en) | Liquefied gas kitchen lighter | |
| CN201572704U (en) | Spray gun | |
| CN211028487U (en) | Multi-head welding gun for tubular product girth welding | |
| CN201322303Y (en) | Portable gas welding torch | |
| CN201568973U (en) | Natural gas welding torch | |
| CN108561881B (en) | Cutting nozzle | |
| CN104209637B (en) | The welding method of High Temperature High Pressure bellows stop valve | |
| CN105756653A (en) | Spray nozzle and gas injecting device with spray nozzle | |
| CN205534814U (en) | Strong connecting pipe of security | |
| CN104654297A (en) | Flame heating sprayer | |
| CN211424391U (en) | Natural gas auxiliary flame blowtorch | |
| CN211937713U (en) | Antidrip hot melt adhesive rifle | |
| CN208202485U (en) | A kind of foam gun with rifle mouth dense block | |
| CN104180394B (en) | A kind of composite graphite burning torch | |
| CN205504991U (en) | Novel flame gun | |
| CN210662930U (en) | Gas and fuel composite ignition device for igniting pulverized coal of industrial pulverized coal boiler | |
| CN204430497U (en) | A kind of hot-melt adhesive paste pipe gas heating-range | |
| CN203309904U (en) | Novel handheld preheating type flame gun | |
| CN105057927A (en) | Multifunctional welding gun adapter | |
| CN204864661U (en) | Stealthy fire control shower nozzle | |
| CN208282095U (en) | A kind of solvent naphtha flame generating means device | |
| CN207223171U (en) | Water cooled welding torch barrel assembly and water cooled welding torch | |
| CN105864772A (en) | Novel flame gun | |
| CN207043522U (en) | Water cooled welding torch | |
| CN207599783U (en) | The asphalt concrete mixer explosion-proof burning torch of burner multi fuel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |